From 5d65e6bc9b297fbf3308e70ea4e2cb9218f2e11f Mon Sep 17 00:00:00 2001
From: Alexey Sedunov <alexey.sedunov@jetbrains.com>
Date: Tue, 14 Feb 2017 21:00:17 +0300
Subject: [PATCH] Kotlin Facet: Facet migration workaround for the case
 pre-1.1-beta -> 1.1.rc+ (reset useProjectSettings to false for old
 configurations)

---
 .../kotlin/idea/facet/KotlinFacetConfiguration.kt         | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/idea/src/org/jetbrains/kotlin/idea/facet/KotlinFacetConfiguration.kt b/idea/src/org/jetbrains/kotlin/idea/facet/KotlinFacetConfiguration.kt
index a280f2c7058..20f95d604de 100644
--- a/idea/src/org/jetbrains/kotlin/idea/facet/KotlinFacetConfiguration.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/facet/KotlinFacetConfiguration.kt
@@ -46,6 +46,14 @@ class KotlinFacetConfiguration : FacetConfiguration {
         else {
             settings = KotlinFacetSettings()
         }
+
+        // Migration problem workaround for pre-1.1-beta releases (mainly 1.0.6) -> 1.1-rc+
+        // Problematic cases: 1.1-beta/1.1-beta2 -> 1.1-rc+ (useProjectSettings gets reset to false)
+        // This heuristic detects old enough configurations:
+        if (element.children.none { it.getAttribute("name").value == "useProjectSettings" }
+            && settings.compilerInfo.k2jvmCompilerArguments == null) {
+            settings.useProjectSettings = false
+        }
     }
 
     @Suppress("OverridingDeprecatedMember")